Metal car-roof.



W. P. MURPHY.

METAL GAR ROOF.

APPLIGATION FILED JUNE 25, 1914.

' Patented Mar. 30, 1915.

2 SHBETSPSHBET 1.

W. P. MURPHY.

METAL GAR ROOF.

APPLIOATION FILED JUNE 25, 1914.

1,1 33,495., Patented Mar. so, 1915.

v 2 SHEETS-SHEET 2.

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roof composed of heavy gage roof plates and AWALTER P. MURPHY, or o'nIcneo, ILLINOIS.

METAL CAR-ROOF.

Specication of Letters Patent.

Patented Mar. so, rais.

`Appumim med Iune 25, 1914i serial No. 847,186.

To all 'whom it may concern Beit known thatI, WALTER P. MURPHY, a citizen of the United States1,i:'.nd' a resident of the city of Chicago, in the county of Cook and' State of Illinois, have invented a new and' useful Improvement in Metal Car- Roofs, of which the following is a specifi-I cation. Y, Thls'i'nvention relates to frelght car construetwn, and conslsts in an improved metal pressed sheet metal carlines riveted or othern Wise rigidly secured to the outside of the roof.

roof having' but few parts.-

further object is a roof which can'be constructed 0E the ca'r and put on as awhole. Further objects of the invention appear in connection' with the following description of the embodiment thereof which is illustrated vin the accompanying drawings.

. In the drawings, in which the same reference characters are used to designate like parts in the several views, Figure 1 is a vertical cross-section and perspective view of the' end p'ortionv of a car roof embodying my invention, the running boards being broken away in 'part to disclose one of the running board saddles; Fig. 2 is a vertical section through a seam and carline at the ridge, on the line 2 2 in Fig. 1; Fig. 3 is a fragmentary view of the eaves of the roof, showing the end of a carline; 4 is a vertical cross-section at the eaves on the line 4-4 in Fig. 3; Fig. 5 is a vertical section through a seam and carline taken transversely thereof, showing a Welded joint, and

Fig. 6 1s aview similar to Fig. 4, showing a modification of the eaves construction.l

In the drawings, the roof is shown applied to a car having metal siding 11 and Z bar side plates 12, but the roof c an be `applied to other kinds of cars having elther metal or wood side plates.

Inthe construction illustrated in Figs. 1 to 4, the roof plates 13 are arranged crosswise. of the car, extending from veaves to eaves in arcs of circles. The side margins of the roof plates are turned up at rightI from end to end of the roof plates. The

flanges 14 are of the sameheight from one end of the flange to the other. The ends of the roof plates overhang the side plates of the car, and are riveted to angle strips 15 The object of the invention is a strong which extend lengthwise of the car outside of the side plates and below the eaves ends of the roof plates. These' angle strips may be" carried around the ends of the car, or the" outer margins of the two end roof plates maybe bent down over the ends of the car and fastened thereto. The roof plates are arrangedv side by side with the adjacent anges 14 of successive roof plates in contact. Pressed sheet metal seam covers 16 of kinverted U shape in cross-section are fitted over the pairs of contacting flanges 14, and the seam covers and flanges are fastened together by rivets passing completely through them. The seam covers are higher at the ridge than at the eaves, and the height diminishes gradually from the ridge to the eaves, in order to provide sufficient vertical stiffness to support the weight of the roof with a minimum heightI at the eaves. Thus the sean'icovers also constitute outside carlines for the roof. The seam' covers or carlines have marginal flanges 17 along their bases, which flanges bear upon the roof plates alongside of the seams yand stiffen the roof in addition to increasing the tight ness of the seams. 'Ihe running boards 18 are supported on pressed steel running board saddles 19, which have horizontal marginal portions 20, to which the running'boards are bolted, and middle saddle portions which straddle the seam caps and rest on their tops. The running board sadvdles have lu-gs or ears 21 struck down on each side of the saddle portions to embrace ,the sides of the seam covers, and horizontal bolts or rivets through these lugs and the seam covers secure the running board saddles in place.

The roof may be riveted over a suitable formV and then dropped in place on the car, with the vertical anges of the .eaves angle strips 15 against the outside of the side plates, to which they may be riveted or otherwise securely fastened. This method of application insures that the roof plates and seam covers shall be properly assembled for riveting.l

This invention enables a car to be equipped with a rigid riveted roof free from initial strains produced in the operation of putting it on the car, and free from vertical rivet holes through which water might lind its way into the car. I

Figs. 5 and 6 illustrate modlfications 1n the construction of the joints between the struction shown in Fig. 6, the ends of the roof plates are bent down against the side plates, forming end flanges 23, which may be Welded or otherwise secured directly to the side plates. An angle eaves strip is not required in the construction shown in Fig. 6, but may be used, if desired, to stifl'en the roof along the eaves.

The invention is not restricted to the particular forms and arrangements of parts shown and described.

I claim the following as my invention:

1. A car roof comprising metal roof plates extending from eaves to eaves and having upstanding flanges along their side margins, said flanges being of substantially uniform height from'end to end, and cover strips of inverted U shape arranged over the adjacent flanges of said roof plates, said cover strips having a greater height at the ridge than at kthe eaves of the roof, and means for securing said flanges and cover strips together to form a rigid joint, whereby said flanges and cover strips together constitute transverse supporting members.

2. A car roof comprising metal roof plates extending from eaves to eaves and having upstanding flanges along their side mar 11s,

said flanges being of substantially uni orm height from end to end, and cover strips of inverted U shape with outwardly projecting flanges along the bottom edges of' the side walls arranged over the adjacent flanges of said roof plates, said cover strips having a greater height at the ridge than at the eaves of the roof, and means for securing said flanges and cover strips together to form a rigid joint, whereby said flanges and cover strips together constitute transverse supporting members.

3. A car roof comprising metal roof plates extending fromv eaves to eaves and having upstanding flanges along their side margins, said flanges being of substantially uniform height from end to end, cover strips of inverted U shape arranged over the adjacent flanges of said roof plates, said cover strips having a greater height at the ridge than at the eaves of the roof, means for securing said flanges and cover strips together to form a rigid joint, and continuous eaves strips arranged lengthwise of said roof under the eaves ends of said roofI plates and rigidly secured thereto, whereby said flanges and cover strips together constitute transverse supporting members.

4. In a car roof, in combination, metal roof plates extending from eaves to eaves and having upstandjng flanges along their side margins, the flanges of adjacent plates being rigidly fastened together along lines parallel with and close to the bottoms of the flanges, cover strips of inverted U-shape arranged over said flanges and secured thereto along the same lines that said flanges are fastened together on, said cover strips having a greater height than the height of said flanges at the ridge, and running board saddles embracing and rigidly secured to the tops of said flanges at the ridge and stiffening them against buckling.

5. A car roof constructed so as to be adapted to be handled as a separate unitary structure, said roof consisting of plates having upturned side flanges arranged side by side and rigidly secured together, stifenng means for the 4upstanding joints formed by said flanges, and stiflening means for the eaves ends of the plates.

G. A car roof constructed so as to be adapted to be handled as a separate unitary structure, said roof consisting of plates having upturned side flanges arranged side by side and rigidly. secured together, stifening means for the upstanding joints formed by said flanges, and stifl'ening means for the eaves ends of the nplates, said eaves stifening meansbeing continuous and extending along "the Whole length of the roof.

Signed at St. Louis, Mo., this 22nd day of l June, 1914-.

. l WALTER P. MURPHY; `Witnesses:

A. M. I-IoLcoMBE, M; A. SHELTON. 

